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Season 3 of TestSprite’s hackathon, called “Build the Loop,” is open for signups…

2026-06-22 · 22:33 UTC ·@Test_Sprite ·0 min read

Brief

TestSprite launched Season 3, “Build the Loop,” (announce June 22, 2026) inviting builders using agents such as Claude Code, Codex, or Antigravity to submit the full write→verify→fix→verify cycle. The open-source TestSprite CLI runs live-app checks as the evaluation. Prize pool is $5,000: $3,000 for top projects over seven days and $2,000 as a rolling $100+ per merged-PR bounty for CLI improvements until funds run out.

Why it matters

Season 3 of TestSprite’s hackathon, called “Build the Loop,” is open for signups as of June 22, 2026 and targets agents like Claude Code, Codex, and Antigravity.

Key details

  • Participants submit the actual write→verify→fix→verify loop: an agent generates code and TestSprite’s open-source CLI runs checks against the live app; that loop is the submission.
  • $5,000 total prize pool: $3,000 awarded to the best projects over a 7-day window; $2,000 reserved as an ongoing bounty paying $100+ per merged PR to improve the TestSprite CLI until the pool is exhausted.
Cleaned source text

Building with Claude Code, Codex, or Antigravity? We built a hackathon for you!

Your agent writes the code; the open-source TestSprite CLI checks it against your live app.

Write → verify → fix → verify.

The loop you run is what you submit.

$5,000 pool.

$3,000 goes to the best projects over 7 days.

The other $2,000 is a standing bounty: spot an improvement for our open-source CLI, open a PR, and we pay $100+ per merged PR. No deadline on that one. It runs till the pool's gone!